[Webkit-unassigned] [Bug 261870] REGRESSION(267646 at main): [TextureMapper][WPE] 2.42 doesn't render anything on the rpi3 with the proprietary drivers

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=261870

--- Comment #4 from Miguel Gomez <magomez at igalia.com> ---
These are the errors coming from the shader program:

Program log: ERROR:OPTIMIZER-3 (fragment shader, line 48) Support for for loops is restricted : right side of condition expression must be constant

Program log: ERROR:OPTIMIZER-3 (fragment shader, line 49) Support for for loops is restricted : right side of condition expression must be constant

The problem seems to be the loops in the applyBlurFilter and applyAlphaBlur functions. The loop condition is i < u_gaussianKernelHalfSize, but u_gaussianKernelHalfSize is an uniform, not a constant.

I guess there are some limitations to what rpi3 proprietary drivers can do.

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